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[PATCH] PR target/65849 -- Add additional options to powerpc #pragma/attribute target support


Steve Munroe was tuning an application on PowerPC, and needed to set the
-msave-toc-indirect option for only one function, and it wasn't available via
the #praga/attribute target options.  This patch adds support for the
additional options that don't involve an ABI change to the list of options that
can be set via the #pragma GCC target or attribute((target(...))) support.

I have bootstrapped the compiler on a power7 (big endian) and power8 (little
endian) with no regressions.  Is this patch ok to install?  I would like to
backport this patch to the current branches (5.x, 4.9, 4.8, maybe 4.7).  Is
this ok?

[gcc]
2015-04-23  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/65849
	* config/rs6000/rs6000.opt (-mvsx-align-128): Make options that
	save to independent variables use the Save attribute.  This will
	allow these options to be modified with the #pragma/attribute
	target support.
	(-mallow-movmisalign): Likewise.
	(-mallow-df-permute): Likewise.
	(-msched-groups): Likewise.
	(-malways-hint): Likewise.
	(-malign-branch-targets): Likewise.
	(-mvectorize-builtins): Likewise.
	(-msave-toc-indirect): Likewise.

	* config/rs6000/rs6000.c (rs6000_opt_masks): Add more options that
	can be set via the #pragma/attribute target support.
	(rs6000_opt_vars): Likewise.
	(rs6000_inner_target_options): If VSX was set, also set
	-mno-avoid-indexed-addresses.

[gcc/testsuite]
2015-04-23  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/65849
	* gcc.target/powerpc/pr65849-1.c: New test to verify being able to
	set new options.
	* gcc.target/powerpc/pr65849-2.c: Likewise.



-- 
Michael Meissner, IBM
IBM, M/S 2506R, 550 King Street, Littleton, MA 01460-6245, USA
email: meissner@linux.vnet.ibm.com, phone: +1 (978) 899-4797

Attachment: pr65849.patch01b
Description: Text document


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